Chapter 2 Vocab

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Term
 Lesson
 Definition
Dimensional Analysis
The process of carrying units through a computation
Equivalent Equations
Equations that have the same Solution
Formula
An equation that sates a rule for the relationship between certain quantities
Identity
An equation that is true for any value of the variable
Multi-Step Equation
an equation with more than one operation going on
Percent of Change
When an increase or decrease is expressed by a percent
Proportion
An equation in the form a/b=c/d stating that two ratios are equivalent
Rate
The ratio of two measurements having different units of measure
Ratio
a comparison of two numbers by division
Scale Model
A model used to represent an object that is too large or small so that it can be clearly viewed
Solve an Equation
The process of finding all values of the variable that make the equation a true statement
Unit Rate
A ratio of two quantities the second of which is a unit
Weighted Average
The sum of the product of the number of units and the value per unit divided by the sum of the number of units, represented by M

These are not in your own words. Grade 7